CN108374462B - Drain valve operating device, cleaning water tank device and toilet flushing system - Google Patents

Drain valve operating device, cleaning water tank device and toilet flushing system Download PDF

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Publication number
CN108374462B
CN108374462B CN201810057926.2A CN201810057926A CN108374462B CN 108374462 B CN108374462 B CN 108374462B CN 201810057926 A CN201810057926 A CN 201810057926A CN 108374462 B CN108374462 B CN 108374462B
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China
Prior art keywords
coupling member
amount
mode
drain valve
discharge valve
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CN201810057926.2A
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Chinese (zh)
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CN108374462A (en
Inventor
谷本秀树
竹谷知祥
松崎贵
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Toto Ltd
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Toto Ltd
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/01—Shape or selection of material for flushing cisterns
    • E03D1/012—Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators
    • E03D1/0125—Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators of built-in cisterns
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves
    • E03D1/144—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves having a single flush outlet and an additional float for delaying the valve closure
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/33—Adaptations or arrangements of floats
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E03D1/35—Flushing valves having buoyancy
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/32—Arrangement of inlet valves

Abstract

The invention provides a drain valve operating device, which can switch a cleaning mode through simple operation and can correctly perform valve opening operation. The drain valve operating device of the present invention includes: a1 st connecting member and a 2 nd connecting member, each having one end connected to the drain valve; a rotary winding part connected with the other end of each of the 1 st connecting component and the 2 nd connecting component; and an operation unit for rotating the rotation and retraction unit, wherein when the operation unit is rotated in the 1 st direction, the rotation and retraction unit retracts the 1 st coupling member by the 1 st amount in the 1 st direction and raises the water discharge valve by the 1 st amount, thereby enabling toilet flushing in the large flushing mode, and when the operation unit is rotated in the 2 nd direction opposite to the 1 st direction, the rotation and retraction unit retracts the 2 nd coupling member by the 2 nd amount which is the same as the 1 st amount in the 2 nd direction, thereby raising the water discharge valve by the 2 nd amount, thereby enabling toilet flushing in the small flushing mode.

Description

Drain valve operating device, cleaning water tank device and toilet flushing system
Technical Field
The present invention relates to a drain valve operating device, a flush water tank device, and a toilet system, and more particularly to a drain valve operating device, a flush water tank device, and a toilet system that perform a valve opening operation on a drain valve of a flush water tank device that supplies flush water to a toilet.
Background
Conventionally, as a drain valve operating device for opening a drain valve of a washing water tank device for supplying washing water to a container, for example, as described in patent document 1, there is known a drain valve operating device in which an operating handle is manually rotated in a predetermined direction to rotate a common rotating and winding member in a predetermined direction, the rotating and winding member winding a single operating wire connected to the drain valve and opening the valve.
Further, a drain valve operating device is also known in which a single common operation wire connected to a drain valve is manually lifted by a manual operating means to perform a valve opening operation, and a single common operation wire is automatically lifted by an electric driving means to perform a valve opening operation in a conventional drain valve operating device described in patent document 2.
In the conventional drain valve operating device described in patent document 2, the amount of lifting of the operation wire is set to be large when a large washing mode in which the amount of washing water is large is executed, and the amount of lifting of the operation wire is set to be smaller than that in the large washing mode when a small washing mode in which the amount of washing water is small is executed.
Patent document 1: japanese unexamined patent application publication No. 2014-190131
Patent document 2: japanese laid-open patent application No. 2015-196949
Disclosure of Invention
However, in recent years, in order to achieve convenience in use of the water discharge valve operating device, it has been a problem that in recent years, it is required not only to directly perform manual operation by a user but also to automate the valve opening operation of the water discharge valve by electrically operating the operation itself of the water discharge valve operating device, and how to switch the cleaning mode by simple operation to enable accurate valve opening operation.
The present invention has been made to solve the problems required in the conventional art, and an object of the present invention is to provide a discharge valve operating device, a flush water tank device, and a toilet system, which can switch a cleaning mode by a simple operation and can perform a valve opening operation accurately.
In order to solve the above problem, the present invention is a discharge valve operation device for opening a discharge valve of a flush water tank device for supplying flush water to a toilet, the discharge valve operation device including: a1 st coupling member and a 2 nd coupling member, each having one end coupled to the drain valve; a rotary winding unit to which the other end of each of the 1 st and 2 nd coupling members is coupled; and an operation unit for rotating the rotary winding unit; and a protective pipe fixed to the other end sides of the 1 st coupling member and the 2 nd coupling member to cover the 1 st coupling member and the 2 nd coupling member, wherein when the operation unit is rotationally operated in a1 st direction, the rotational retraction unit retracts the 1 st coupling member by only a1 st amount in the 1 st direction and raises the water discharge valve by only the 1 st amount, thereby enabling toilet cleaning in a1 st cleaning mode with a1 st amount of flush water, and when the operation unit is rotationally operated in a 2 nd direction opposite to the 1 st direction, the rotational retraction unit retracts the 2 nd coupling member by only a 2 nd amount equal to the 1 st amount in the 2 nd direction and raises the water discharge valve by only a 2 nd amount, thereby enabling toilet cleaning in a 2 nd cleaning mode with a 2 nd amount of flush water different from the 1 st amount, before the 1 st and 2 nd cleaning modes are executed, the 1 st and 2 nd coupling members are provided at positions where the 1 st and 2 nd coupling members are wound in advance along the outer periphery of the rotating winding-up portion by a predetermined length.
In the present invention thus constituted, when the 1 st washing mode and the 2 nd washing mode, in which the amount of washing water is different from each other, are executed, the operation unit is simply rotated in different directions by the same amount of rotation according to the desired washing mode, and thus, different washing modes can be easily switched using the common rotating and winding unit.
Further, the rotary retracting unit retracts either the 1 st coupling member or the 2 nd coupling member by the same amount according to the flush mode, so that the valve opening operation for a certain amount of lifting the discharge valve can be performed accurately regardless of the flush mode, and toilet flushing in different flush modes can be performed easily.
In the present invention, it is preferable that the operation unit is an electrically operated unit that is electrically operable to operate the water discharge valve, the electrically operated unit includes an electric rotating shaft that is rotatably driven by external power, the electric rotating shaft is connected to the rotating and winding unit, and the rotating and winding unit is rotatable by the rotating drive of the electric rotating shaft with a radius of rotation larger than a radius of rotation of the electric rotating shaft.
In the present invention thus constituted, if the electric rotary shaft of the electric operation unit is rotated in accordance with a desired washing mode when the 1 st washing mode and the 2 nd washing mode, which are different in the amount of washing water, are executed, the rotary winding-up unit can be rotated by the same amount of rotation in different directions in accordance with the desired washing mode with a radius of rotation larger than that of the electric rotary shaft.
Therefore, the rotary winding unit can automatically wind the same amount of the 1 st coupling member or the 2 nd coupling member according to the cleaning mode. Thus, the valve opening operation for a certain lift amount of the discharge valve can be automatically performed regardless of the flush mode, and toilet flushing in different flush modes can be automatically performed in a simple manner.
Further, since the rotatable winding portion is rotatable at a radius of rotation larger than that of the electric rotary shaft, the rotatable winding portion can lift up either the 1 st coupling member or the 2 nd coupling member by a relatively large lift-up amount with respect to the angle of rotation of the electric rotary shaft.
Therefore, the valve opening operation of the discharge valve can be performed efficiently.
In the present invention, it is preferable that a1 st attaching part and a 2 nd attaching part to which the other end of each of the 1 st coupling member and the 2 nd coupling member is attachable are provided on an outer periphery of the rotating winding-up part, the attaching parts are arranged substantially in parallel in a rotation central axis direction of the rotating winding-up part, the 1 st coupling member and the 2 nd coupling member are arranged symmetrically with respect to a rotation center thereof in one side and the other side with respect to a rotation center thereof in a plan view of the rotating winding-up part, a standby position of the 1 st attaching part and the other end of the 1 st coupling member of the rotating winding-up part is set to a position where the 1 st coupling member is wound up by a predetermined length along the outer periphery of the rotating winding-up part in the 1 st direction in a state before starting the electric operation of the electric operation unit, and the electric operation unit is set in a state before starting the electric operation, the standby position of the second mounting portion 2 and the other end of the second coupling member of the rotary winding-up portion is set to a position at which the second coupling member is wound up by the predetermined length in advance along the outer periphery of the rotary winding-up portion in the second direction 2.
In the present invention thus constituted, first, when the electric rotary shaft of the electric operation unit is rotated in the 1 st direction from the state before the electric operation of the electric operation unit is started, the rotary winding-up portion is rotated in the 1 st direction from the standby state, and the 1 st mounting portion and the 2 nd mounting portion are moved only by the 1 st amount in the 1 st direction from the standby position. Thus, the 1 st coupling member is further wound by the 1 st amount in the 1 st direction from the standby position by the rotating winding unit, and the 2 nd coupling member is released by the 1 st amount in the 1 st direction from the standby position by the rotating winding unit.
On the other hand, when the electric rotary shaft of the electric operation unit is rotated in the 2 nd direction, the rotary winding-up unit is rotated in the 2 nd direction from the standby state, and the 1 st mounting part and the 2 nd mounting part are moved in the 2 nd direction from the standby position by the 2 nd amount which is the same as the 1 st amount. Thus, the 1 st coupling member is released only by the 2 nd amount from the standby position in the 2 nd direction by the rotating winding-up unit, and the 2 nd coupling member is further wound only by the 2 nd amount from the standby position in the 2 nd direction by the rotating winding-up unit.
Therefore, the rotary winding unit can smoothly and automatically wind either the 1 st coupling member or the 2 nd coupling member by the same amount in accordance with the cleaning mode, and the valve opening operation for a certain amount of the water discharge valve can be reliably and automatically performed regardless of the cleaning mode. The mounting portions are arranged substantially in parallel in the direction of the rotation center axis of the rotating winding-up portion. Further, since the 1 st coupling member and the 2 nd coupling member are disposed symmetrically with respect to the rotation center thereof on one side and the other side in a plan view of the rotating winding unit, even when the rotating winding unit rotates in accordance with the cleaning mode, the 1 st coupling member and the 2 nd coupling member do not interfere with each other, and can reliably and smoothly move.
In the present invention, it is preferable to further include: a1 st rod part indirectly connecting the drain valve and one end of the 1 st connecting member; and a 2 nd lever part indirectly connecting the drain valve and one end of the 2 nd coupling member, wherein the 1 st lever part includes a1 st coupling part that is engageable with/disengageably coupled to the other end of the 1 st coupling member while slidably holding the 1 st coupling member, and the 2 nd lever part includes a 2 nd coupling part that is engageable with/disengageably coupled to the other end of the 2 nd coupling member while slidably holding the 2 nd coupling member.
In the present invention thus constituted, first, when the rotating and winding unit is rotated from the standby state to the 1 st direction by the rotating operation of the electric operation unit in the 1 st direction, the 1 st coupling member is wound by the rotating and winding unit by the 1 st amount. Thus, in a state where one end of the 1 st coupling member is engaged with the 1 st coupling member, the 1 st rod part, and the water discharge valve are raised by only the 1 st amount.
At the same time, the 2 nd coupling member is released by the rotating and retracting unit by the 1 st amount, and the 2 nd coupling member is lowered by the 1 st amount in a state where the engagement between the one end of the 2 nd coupling member and the 2 nd coupling member is released.
Thus, the 2 nd stem part is not lifted up, and the 1 st stem part is lifted up by the 1 st coupling member, so that the valve opening operation in the 1 st cleaning mode for the water discharge valve can be accurately performed.
On the other hand, when the rotating and winding unit is rotated from the standby state to the 2 nd direction by the rotating operation of the electric operation unit in the 2 nd direction, the 2 nd coupling member is wound by the rotating and winding unit by the 2 nd amount which is the same as the 1 st amount. Thereby, the 2 nd coupling member, the 2 nd rod part, and the drain valve are raised in a state where the 2 nd coupling member is engaged with the 2 nd coupling part at one end thereof.
At the same time, the 1 st coupling member is released by the rotating and retracting unit by the 2 nd amount, and the 1 st coupling member is lowered by the 2 nd amount in a state where the engagement between the 1 st coupling member and the 1 st coupling member is released.
Thus, only the 2 nd stem part is lifted by the 2 nd coupling member, and the valve opening operation in the 2 nd cleaning mode for the water discharge valve can be accurately performed.
In the present invention, it is preferable that the winding device further includes a holding unit that rotatably holds the rotating winding unit, and the rotating winding unit and the holding unit are provided with a rotation angle restricting mechanism that restricts a rotation angle of the rotating winding unit.
In the present invention thus constituted, since the rotation angle restricting mechanism for restricting the rotation angle of the rotating winding-up unit is provided in the rotating winding-up unit and the holding unit, the rotation angle range of the rotating winding-up unit that is rotationally operated in the 1 st direction or the 2 nd direction in accordance with the cleaning mode can be restricted to be within a predetermined angle range.
Therefore, the lift-up amount of the discharge valve during the valve opening operation can be accurately controlled.
The present invention is also directed to a wash water tank device including the drain valve operating device.
In the present invention thus constituted, the valve opening operation for a certain amount of lifting of the discharge valve can be accurately performed regardless of the flush mode, and a flush water tank device capable of easily performing toilet flushing in different flush modes can be provided.
The present invention is also a toilet system including the above-described flush water tank device and a flush toilet connected to the flush water tank device.
In the present invention thus constituted, the valve opening operation for a certain amount of lifting of the discharge valve can be accurately performed regardless of the flush mode, and a toilet system capable of easily performing toilet flushing in different flush modes can be provided.
According to the drain valve operating device, the cleaning water tank device and the toilet flushing system, the cleaning mode can be switched through simple operation, and valve opening operation can be correctly carried out.
Drawings
Fig. 1 is an exploded perspective view schematically showing a toilet system including a flush water tank device to which a drain valve operation device according to an embodiment of the present invention is applied.
Fig. 2 is a schematic front view showing an internal structure of a wash water tank device to which a drain valve operation device according to an embodiment of the present invention is applied.
Fig. 3 is a schematic front view showing an electric operation unit of the water discharge valve operation device according to the embodiment of the present invention.
Fig. 4 is an exploded perspective view of the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, as viewed obliquely from above.
Fig. 5 is an exploded perspective view of an electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, as viewed obliquely from below.
Fig. 6 is a sectional view taken along line VI-VI of fig. 3.
Fig. 7 is a sectional view taken along line VII-VII of fig. 3.
Fig. 8 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a standby state (valve-closed state) before the start of the valve-opening operation.
Fig. 9 is an enlarged cross-sectional view showing a coupling portion between each lever portion and each operation wire in the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention shown in fig. 8.
Fig. 10 is a sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for the large purge in a state where the large purge mode is started.
Fig. 11 is a sectional view similar to fig. 7 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for small flushing in a state where the large flushing mode is started.
Fig. 12 is a schematic front sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing an open state at the start of the large flush mode.
Fig. 13 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a state during valve closing in the large purge mode.
Fig. 14 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a closed valve state at the end of the large purge mode.
Fig. 15 is a sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for large flushing in a state where the small flushing mode is started.
Fig. 16 is a sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for the small flush in a state where the small flush mode is started.
Fig. 17 is a schematic front sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing an open state at the start of the small flush mode.
Fig. 18 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a state during valve closing in the small purge mode.
Fig. 19 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a closed valve state at the end of the small purge mode.
Description of the symbols
The flushing mode includes a 1-drain valve operating device, a 2-wall-mounted flush toilet, a 4-flush water tank device, a 6-fixing device, an 8-storage water tank, a 10-toilet main body, a 12-water supply valve device, a 14-drain valve device, a 16-water supply pipe, an 18-water supply valve, a 20-float, a 22-drain port, a 24-drain valve body (drain valve), a 26-electric operating unit (operating part), a 26 a-electric rotating shaft (operating part), a 28-connecting pipe, a 30-bracket, a 32-lower shell (holding part), a 34-upper shell (holding part), a 34 a-rotation limiting projection (rotation angle limiting mechanism), a 36-pulley, a 36 a-shaft part, a 36 b-rotation retracting part, a 36C-recessed hole, a 36 d-mounting hole (first mounting part 1), a 36 e-mounting hole (second mounting part 2), a 36 f-guide groove, a 36 g-guide groove, a 36H-rotation limiting guide groove (1) mechanism), a 36 i-guide groove end part, a 36 j-guide groove, a 36C-guide groove, a 36 g-guide groove, a 1H-rotation angle limiting mechanism, a 36 i-guide groove (1 a) and a 36 i-T-guide groove, a-T-guide groove, a-T-line, a guide groove, a-line, a guide groove, a guide groove, a guide groove, a.
Detailed Description
Hereinafter, a drain valve operating device according to an embodiment of the present invention will be described with reference to the drawings.
First, an outline of a toilet flushing system including a flush water tank device to which a drain valve operation device according to an embodiment of the present invention is applied will be described with reference to fig. 1.
Fig. 1 is an exploded perspective view schematically showing a toilet system including a flush water tank device to which a drain valve operation device according to an embodiment of the present invention is applied.
As shown in fig. 1, a drain valve operation device 1 according to an embodiment of the present invention is provided in a flush water tank device 4 that supplies flush water to a wall-mounted flush toilet 2 of a toilet system T.
The left and right sides of the flush water tank device 4 are fixed by fixing devices 6, and the rear end portion of the flush toilet 2 of the toilet system T is fixed from the inner side of the wall by the fixing devices 6 through a wall W1.
The flush water tank device 4 is provided with a gravity feed type storage tank 8 hidden in the back region of the wall W1, and flush water in the storage tank 8 is supplied to the flush toilet 2 by gravity.
The wall-mounted flush toilet 2 may be applied to various types of flush toilets, such as a so-called direct flush toilet in which flush water supplied from the flush water tank device 4 is discharged through a drop in height of a bowl portion (not shown) in the toilet main body 10, and a so-called siphon toilet in which waste in the bowl portion (not shown) is sucked by a siphon action and discharged to the outside at once through a drain trap pipe (not shown).
Next, fig. 2 is a schematic front view showing an internal structure of a wash water tank device to which a drain valve operation device according to an embodiment of the present invention is applied.
As shown in fig. 2, the drain valve operating device 1, the water supply valve device 12, and the drain valve device 14 according to the present embodiment are provided in the storage tank 8 of the flush water tank device 4.
First, as shown in fig. 2, the water supply valve device 12 includes: a water supply pipe 16 connected to a water supply source (not shown) outside the water storage tank 8 such as a tap water pipe; a water supply valve 18 for switching between spouting and stopping of the cleaning water supplied from the water supply pipe 38; and a float 20 which moves up and down in response to a change in the water level in the water storage tank 8 to open and close the water supply valve 18.
The details of the water supply valve device 12 are the same as those of the conventional water supply valve device, and therefore, the description thereof is omitted.
Next, as shown in fig. 2, the water discharge valve device 14 includes a water discharge valve body 24 as a water discharge valve that opens and closes the water discharge port 22 at the bottom of the water storage tank 8 by moving up and down.
When toilet bowl flushing is started, the water discharge valve body 24 can be lifted (opened) by an electric operation of an electric operation unit 26 (described later in detail) which is an operation portion of the water discharge valve operation device 1 according to the present embodiment.
As shown in fig. 2, in a state where the discharge valve body 24 is opened, the flush water in the storage tank 8 flows from the discharge port 22 into the water conduit (not shown) of the toilet main unit 10 through the inside of the connection pipe 28 below (downstream side) the discharge port.
Next, the drain valve operating device 1 and the drain valve device 14 according to one embodiment of the present invention will be described in detail with reference to fig. 3 to 9.
Fig. 3 is a schematic front view showing an electric operation unit of the water discharge valve operation device according to the embodiment of the present invention.
Fig. 4 is an exploded perspective view of the electric operation unit of the water discharge valve operating device according to the embodiment of the present invention as viewed from obliquely above, and fig. 5 is an exploded perspective view of the electric operation unit of the water discharge valve operating device according to the embodiment of the present invention as viewed from obliquely below.
Further, fig. 6 is a sectional view taken along the line VI-VI of fig. 3, and fig. 7 is a sectional view taken along the line VII-VII of fig. 3.
Fig. 8 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, and shows a standby state (valve-closed state) before the start of the valve-opening operation.
First, as shown in fig. 3 to 7, the drain valve operating device 1 according to the present embodiment includes: an electric operation unit 26 fixed in the water storage tank 8 via a bracket 30; upper and lower shells 32, 34; a pulley 36; a stopper 38; a large cleaning mode operation line 40 as a1 st connecting member; a protection pipe 42 outside the operation line 40 for the large cleaning mode; a small cleaning mode operation wire 44 as a 2 nd connecting member; and a protection pipe 46 outside the operation line 44 for the small cleaning mode.
The electric operation unit 26 incorporates a DC motor (not shown), a gear box (not shown), an actuator (not shown), and the like, and includes an electric rotating shaft 26a that is rotatably driven by external power.
In addition, during the operation of the electric operation unit 26, for example, a controller (not shown) controls the driving of a DC motor (not shown) and an actuator (not shown) based on a signal transmitted by a human detection sensor (not shown) provided in the vicinity of the flush toilet 2 and/or a signal transmitted by a user operating a remote controller (not shown) or the like, thereby controlling the rotational driving of the electric rotation shaft 26 a.
The electric operation unit 26 is also provided with a return spring (not shown) or the like, which applies a force in a direction to reverse the electric rotary shaft 26a to reliably return the electric rotary shaft 26a to the initial position P0 after the electric rotary shaft 26a has rotated from the initial position P0 by the predetermined rotation angle θ 1.
The detailed structure of the electric operation unit 26 is the same as that of the conventional one, and therefore, the description thereof is omitted.
In the present embodiment, both a human detection sensor (not shown) and a remote controller (not shown) may be provided, or either one may be omitted, and the controller (not shown) may operate the electric rotary shaft 26a of the electric operation unit 26 based on a signal transmitted only from the other.
Next, as shown in fig. 4 to 7, the upper and lower cases 32 and 34 are holding portions that rotatably hold the pulley 36.
The pulley 36 includes: a shaft 36a connected to the electric rotating shaft 26a of the electric operation unit 26; and a substantially annular rotary winding portion 36b projecting radially outward from the shaft portion 36 a.
A concave hole 36c (see fig. 5) is formed in the shaft portion 36a of the pulley 36 in the axial direction thereof, and the electric rotary shaft 26a of the electric operation unit 26 can be inserted from below.
In a state where the electric rotary shaft 26a is inserted into the concave hole 36c of the shaft 36a of the pulley 36, the stopper 38 is fitted to a predetermined position on the outer surface of the shaft 36a of the pulley 36 from the outside, whereby the shaft 36a of the pulley 36 is fixed to the electric rotary shaft 26a, and the axial direction is prevented from coming off.
As shown in fig. 8, the one-end projection 40a of the large flush mode operation wire 40 is coupled to a1 st coupling portion (coupling portion 48a) of a1 st rod portion (operation lever 48 for the large flush mode) of the water discharge valve device 14, which will be described in detail later, so as to be engageable with and disengageable from each other.
Similarly, the one-end projection 44a of the operation wire 44 for the small flush mode is coupled to a 2 nd coupling portion (coupling portion 50a) of a 2 nd rod portion (operation lever 50 for the small flush mode) of the water discharge valve device 14, which will be described in detail later, so as to be engageable with and disengageable from each other.
On the other hand, the outer peripheral surface of the rotation winding portion 36b of the pulley 36 is provided with a mounting hole 36d as a1 st mounting portion and a mounting hole 36e as a 2 nd mounting portion (see fig. 5). The other end projections 40b and 44b of the operation wires 40 and 44 are fitted into the mounting holes 36d and 36e of the rotating winding portion 36b of the pulley 36 (see fig. 5).
As shown in fig. 5, the mounting holes 36d and 36e of the rotating winding-up portion 36b are arranged substantially in parallel with each other in the direction of the rotation axis a1 of the rotating winding-up portion 36 b. The mounting hole 36d for mounting the projection 40b of the large washing mode operation wire 40 is located upward, and the mounting hole 36e for mounting the projection 44b of the small washing mode operation wire 44 is located downward.
As shown in fig. 5, guide grooves 36f and 36g are formed in the outer peripheral surface of the rotation winding portion 36b of the pulley 36 so as to be vertically aligned over the substantially entire circumferential span other than the mounting holes 36d and 36 e. When the operation wires 40 and 44 are wound by the rotary winding portion 36b, they are guided along the corresponding guide grooves 36f and 36 g.
The operation wires 40 and 44 are slidable with respect to the corresponding protection pipes 42 and 46, respectively.
As shown in fig. 8, one ends 42a and 46a of the protection pipes 42 and 46 are fixed to an upper portion of the drain valve device 14.
On the other hand, as shown in fig. 4 to 7, the other ends 42b and 46b of the protective tubes 42 and 46 are sandwiched and fixed by the cases 32 and 34 from above and below.
Next, in fig. 6 and 7, an axis passing through the rotation central axis a1 of the pulley 36 and extending in the left-right direction is referred to as "X", and an axis passing through the rotation central axis a1 of the pulley 36 and extending in the front-rear direction is referred to as "Y".
As shown in fig. 6 and 7, the other ends 42b and 46b of the protective ducts 42 and 46 are disposed symmetrically with respect to the rotation center axis a1 and the axis X of the pulley 36 in plan view, and are located on the front side and the rear side, respectively.
Accordingly, as shown in fig. 6 and 7, the large cleaning mode wire 40 and the small cleaning mode wire 44 are also disposed symmetrically with respect to the rotation center axis a1 and the axis X of the pulley 36, and are located on the front side and the rear side, respectively.
In the standby state S0 before the electric operation unit 26 starts the electric operation, the large cleaning mode operation wire 40 is wound in advance by the predetermined length α 0 in the 1 st direction R1 along the guide groove 36f from the tangent point C1 to the guide groove 36f, as shown in fig. 6.
That is, as shown in fig. 6, the standby position P0 of the 1 st mounting hole 36d of the rotatable winding portion 36b and the projection 40b of the operating wire 40 is set to a position where the operating wire 40 is wound in advance by a predetermined length α 0 in the 1 st direction R1 along the guide groove 36f from the tangent point C1 with the guide groove 36 f.
As shown in fig. 6, the predetermined length α 0 of the operating wire 40 wound in advance is substantially 1/4 of the entire circumferential (circular arc) length of the guide groove 36 f.
Similarly, as shown in fig. 7, the small washing mode operation wire 44 is also wound in advance along the guide groove 36g from the tangent point C2 with the guide groove 36g by a predetermined length α 0 in the 2 nd direction R2.
That is, as shown in fig. 7, the standby position P0 of the 2 nd mounting hole 36e of the rotatable winding part 36b and the projection 44b of the operating wire 44 is also set to a position where the operating wire 44 is wound in advance by a predetermined length α 0 from the tangent point C2 with the guide groove 36g in the 2 nd direction R2 opposite to the 1 st direction R1 along the guide groove 36 g.
As shown in fig. 7, the predetermined length α 0 of the operating wire 44 wound in advance is about 1/4 of the entire circumference (arc) length of the guide groove 36 g.
Next, as shown in fig. 4 and 6, a semicircular arc-shaped rotation restricting guide groove 36h is formed on the inner circumferential side of the rotation winding-up portion 36b with the center axis a1 as the center.
As shown in fig. 5 and 6, a rotation restricting projection 34a projecting into the rotation restricting guide groove 36h is provided on the top surface in the upper case 34.
When the pulley 36 rotates about the rotation center axis a1, the rotation regulating guide groove 36h and the rotation regulating projection 34a function as a rotation angle regulating mechanism that regulates the rotation angle of the pulley 36.
That is, when the pulley 36 is rotationally operated in the 1 st direction R1 or the 2 nd direction R2 in accordance with the cleaning mode, the rotation restricting projection 34a abuts on one of the circumferential end portions of the rotation restricting guide groove 36h, and therefore the rotatable angular range of the pulley 36 is restricted.
Here, as shown in fig. 6, in the standby state S0 before the electric operation unit 26 starts the electric operation, the standby position P0 of the rotation restricting projection 34a is located on the axis X in the right side region of the rotation center axis a of the pulley 36 in plan view.
In addition, as shown in fig. 6, in the standby state S0 before the electric operation unit 26 starts the electric operation, at the standby position P0 of the rotation restricting guide groove 36h, the circumferential direction both end portions 36i, 36j of the guide groove 36h are positioned on the axis Y in the front region and the rear region, respectively, with respect to the rotation center axis a of the pulley 36 in a plan view.
That is, as shown in fig. 6, the both end portions 36i and 36j of the guide groove 36h at the standby position P0 are located at positions symmetrical in the circumferential direction of the guide groove 36h with the projection 34aj as the center in plan view.
Next, as shown in fig. 8, the drain valve device 14 provided in the storage tank 8 of the flush water tank device 4 is configured such that the flush water tank device 4 is hidden behind the wall W1, and the space in the depth direction in the storage tank 8 is also limited to be small. Accordingly, the entire shape of the discharge valve device 14 disposed in the water storage tank 8 is also substantially elongated and cylindrical.
The water discharge valve device 14 includes a water discharge port forming member 52, a water discharge valve body 24, a large washing control cylinder 54, a float 56, a small washing control cylinder 58, a water storage weight 60, a cam 62, a control cylinder cover 64, an overflow pipe 66, an operation lever 48 for the large washing mode, a hook member 68, and an operation lever 50 for the small washing mode.
First, as shown in fig. 8, a drain port forming member 52 is connected to the bottom of the reservoir tank 8, a drain port 22 is formed in the bottom surface of the reservoir tank 8, and a valve seat 52a is formed along the upper edge of the drain port 22.
As shown in fig. 8, the drain valve body 24 is attached near the lower end of the overflow pipe 66, and when the overflow pipe 66 is located at the lowest position, it abuts against the valve seat 52a to close the drain port 22.
As shown in fig. 8, the overflow pipe 66 is vertically slidable through the control cylinders 54 and 58 and the control cover 64. An operation lever 48 for a large cleaning mode is connected to the outer surface of the upper opening forming portion 66a of the overflow pipe 66.
In addition, in the valve opening operation in the large cleaning mode, since the operating lever 48 is lifted by the operating wire 40, the overflow pipe 66 and the drain valve body 24 are lifted up, and the drain port 22 is opened.
As shown in fig. 8, a hook member 68 is provided inside the control cover 64 and below the upper opening forming portion 66a of the overflow pipe 66. The operation lever 50 for the small washing mode is connected to the hook member 68.
In addition, in the valve opening operation in the small flush mode, since the operating lever 50 is lifted by the operating wire 44, the overflow pipe 66 and the drain valve body 24 are lifted together with the hook member 68, and the drain port 22 is opened.
That is, the entire overflow pipe 66 and the drain valve body 24 substantially function as a drain valve.
When the water level in the storage tank 8 exceeds the upper end position of the overflow pipe 66, the excessive washing water is discharged from the overflow pipe 66 to the drain port 22 which is always connected to the overflow pipe.
Next, as shown in fig. 8, a float 56 is provided in a large purge control cylinder 54 provided above the drain opening forming member 52. An opening 54a with an adjustable opening area is formed in a side surface of the large cleaning control cylinder 54, and the inside of the large cleaning control cylinder 54 and the inside of the water storage tank 8 are communicated with each other through the opening 54 a.
As shown in fig. 8, the float 56 moves up and down together with the overflow pipe 66 according to the water level in the large washing control cylinder 54.
Further, since the float 56 is formed of a material such as Expanded Polystyrene (EPS) which is easily affected by buoyancy, when the float 56 receives buoyancy due to washing water in the large washing control cylinder 54, the float 56 itself is easily lifted.
Next, as shown in fig. 8, a bucket-shaped water storage weight 60 is provided in the small purge control cylinder 58 provided above the large purge control cylinder 54. An opening 58a whose opening area is adjustable is formed in a side surface of the small cleaning control cylinder 58, and the inside of the small cleaning control cylinder 58 and the inside of the water storage tank 8 are communicated with each other through the opening 58 a.
As shown in fig. 8, the water storage weight 60 always stores therein the washing water in a full water state. The water storage weight 60 is movable up and down in accordance with the water level in the small washing control cylinder 58.
When overflow pipe 66 rises, rib 66b on the outer surface of overflow pipe 66 can abut from below against upper edge 60a on the inner periphery of water storage weight 60 surrounding the outer surface of overflow pipe 66. Further, in a state where rib 66b of overflow pipe 66 abuts against inner peripheral upper edge 60a of water storage weight 60, water storage weight 60 may be integrally raised together with the rise of overflow pipe 66.
Next, as shown in fig. 8, a water storage weight control cam 62 is rotatably coupled to the water storage weight 60.
In the large cleaning mode, the cam 62 for controlling the water storage weight is not in contact with the overflow pipe 66 at all times.
That is, as shown in fig. 8, the cam 62 in the standby state (initial position before valve opening) has its lower end in contact with the projection 58b in the small cleaning control cylinder 58, and therefore the upper end of the cam 62 is in a state of being turned toward the distal side with respect to the overflow pipe 66.
Then, when the water storage weight 60 is raised together with the rise of the overflow pipe 66 in accordance with the valve opening operation in the large flush mode, the upper end of the cam 62 abuts on the guide portion 64a of the control cylinder cover 64, and rotates toward the rib 68a side (proximal side) of the hook member 68.
Further, since the upper end of the cam 62 is caught by abutting against the rib 68a of the hook member 68, it does not abut against the outer surface of the overflow pipe 66, and the water storage weight 60 is in a suspended state.
Accordingly, since the weight of the water storage weight 60 does not act on the overflow pipe 66 after the valve is opened, the valve closing operation of the overflow pipe 66 can be delayed.
On the other hand, in the small flush mode, the cam 62 for controlling the water storage weight comes into contact with the descending overflow pipe 66, and therefore the load of the water storage weight 60 acts on the overflow pipe 66 when the valve is closed. This makes the valve closing operation of the overflow pipe 66 in the small cleaning mode earlier than in the large cleaning mode.
Next, fig. 9 is an enlarged cross-sectional view showing a connection portion between each lever portion and each operation line in the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention shown in fig. 8.
As shown in fig. 9, through holes 48b and 50b penetrating in the vertical direction are formed in the respective coupling portions 48a and 50a of the operation lever 48 for the large cleaning mode and the operation lever 50 for the small cleaning mode, respectively.
The diameter of each of the through holes 48b and 50b is set to be larger than the diameter of each of the operation wires 40 and 44 and smaller than the diameter of each of the projections 40a and 44 a.
Thus, the operation wires 40 and 44 are slidable in the vertical direction with respect to the through holes 48b and 50b, and when the operation wires 40 and 44 are raised, the protrusions 40a and 44a are not pulled out upward in a state of being fitted to the coupling portions 48a and 50a from below.
Next, referring to fig. 6 to 19, the operation (action) of the water discharge valve operating device according to the embodiment of the present invention will be described together with the operation of the water discharge valve device.
First, the operation when the valve opening operation in the large flush mode is performed using the water discharge valve operating device 1 according to the present embodiment will be described with reference to fig. 6 to 14.
Fig. 10 is a sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for the large purge in a state where the large purge mode is started.
Fig. 11 is a cross-sectional view similar to fig. 7 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for small flushing in a state where the large flushing mode is started.
Fig. 12 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing an open state at the start of the large flush mode.
Fig. 13 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a state during valve closing in the large purge mode.
Fig. 14 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a closed valve state at the end of the large purge mode.
First, as shown in fig. 6 to 9, from the standby state S0 in which the discharge valve body 24 of the discharge valve device 14 closes the discharge port 22, the discharge valve body 24 is operated to open the valve in the large cleaning mode by the electric operation of the electric operation unit 26 of the discharge valve operation device 1 of the present embodiment.
At this time, for example, the user instructs the toilet bowl washing operation in the large washing mode by pressing a predetermined operation button (not shown) such as a remote controller (not shown), or the like, or the signal is transmitted to the control device (not shown) when the human detection sensor (not shown) detects the user.
Thereafter, the electric rotary shaft 26a of the electric operation unit 26 shown in fig. 6 and 7 is operated, and the pulley 36 is rotated in the 1 st direction R1 about the rotation center axis a1 together with the electric rotary shaft 26a, thereby starting the valve opening operation in the large cleaning mode.
Next, as shown in fig. 10 and 11, the pulley 36 is rotated by a rotation angle θ 1 (e.g., θ 1 is 83.5(°)) from the standby position P0 to the 1 st direction R1 around the rotation central axis a1, and is in a start state S1 of the large washing mode. In this state S1, the end 36i of the rotation winding portion 36b on the rotation regulating guide groove 36h side abuts on the rotation regulating projection 34a, and the pulley 36 is regulated from rotating (see fig. 10).
At this time, as shown in fig. 10, the large cleaning mode wire 40 is wound around the guide groove 36f of the rotation winding portion 36b of the pulley 36 and moved by the 1 st amount α 1 (mm).
Thus, as shown in fig. 12, the large cleaning mode operation wire 40 is lifted up by the 1 st amount α 1(mm) from the standby position P0 to the position P1.
At the same time, the protrusion 40a of the operation wire 40 is lifted up in a state of being fitted to the coupling portion 48a of the operation lever 48 for the large washing mode.
Therefore, as shown in fig. 12, the operation lever 48 for the large washing mode is lifted up by a predetermined distance H1(mm) (H1 is α 1) equal to the 1 st amount α 1 (mm).
As shown in fig. 12, since the operation lever 48 for the large flush mode is lifted, the overflow pipe 66 and the water discharge valve body 24 of the water discharge valve device 14 are also lifted by a predetermined distance H1(mm) from the valve-closed position P1 to the uppermost position P1 (H1 — α 1).
At this time, as shown in fig. 12, the float 56 in the large cleaning control cylinder 54 also rises to the uppermost position by the buoyancy, and assists the rising of the overflow pipe 66 and the water discharge valve body 24.
In the water discharge valve device 14 in the state S1 shown in fig. 12, the rib 66b of the overflow pipe 66 comes into contact with the inner peripheral upper edge 60a of the water storage weight 60 from below in conjunction with the rising of the overflow pipe 66 in accordance with the valve opening operation in the large flush mode. Thereby, the water storage weight 60 also rises integrally with the overflow pipe 66.
As shown in fig. 12, the upper end of the cam 62 abuts against the inclined surface of the guide portion 64a of the control cylinder cover 64, and is rotated while being guided toward the rib 68a side (proximal side) of the hook member 68. Thereafter, the upper end of the cam 62 abuts against the rib 68a of the hook member 68 and is stopped. Accordingly, the water storage weight 60 is in a suspended state without coming into contact with the outer surface of the overflow pipe 66, and thereafter, the weight of the water storage weight 60 does not act on the overflow pipe 66 until the valve is closed.
Therefore, the overflow pipe 66 is smoothly lifted to the uppermost position without being affected by the water storage weight 60.
This smoothly opens the drain valve body 24, and the flush water in the storage tank 8 is drained from the drain port 22 to the water conduit (not shown) of the toilet main unit 4.
On the other hand, as shown in fig. 11, the small washing mode operation wire 44 moves by the 1 st amount α 1(mm) while being released from the guide groove 36g of the rotating winding-up portion 36b by the rotation of the pulley 36 in the 1 st direction R1.
Thus, as shown in fig. 12, the small mode operation wire 44 is lowered by the 1 st amount α 1(mm) from the standby position P0 to the position P1, and the protrusion 44a of the operation wire 44 is not lowered in engagement with the coupling portion 50a of the small washing mode operation lever 50, so that the small washing mode operation lever 50 is not lifted up and is in a stationary state in the starting state S1 of the large washing mode.
That is, the level of the washing water in the storage tank 8 in the state S1 shown in fig. 12 is lowered from the full water level W L0 to the water level W L1 in the standby state S0 shown in fig. 8.
Next, after state S1 shown in fig. 10 to 12, the DC motor (not shown) of the electric operation unit 26 is stopped for a predetermined time, and the electric rotary shaft 26a is stopped for a predetermined time. Thereby, the discharge valve body 24 is opened at the uppermost position P1 for a predetermined time.
After that, after the water discharge valve body 24 is opened for a predetermined time, the DC motor (not shown) of the electric operation unit 26 is operated again.
Accordingly, the electric rotary shaft 26a and the pulley 36 are rotated (reversed) in the 2 nd direction R2 by the rotation angle θ 1 about the rotation center axis a1, and then stopped again, and the state S2 is the same as the standby state S0 shown in fig. 6 and 7.
That is, the large cleaning mode operation wire 40 from the state S1 shown in fig. 10 to the state S2 shown in fig. 6 moves by the 1 st amount α 1(mm) from the position P1 shown in fig. 10 to the position P0 shown in fig. 6 while being released from the guide groove 36f of the rotation winding portion 36b of the pulley 36.
Thus, as shown in fig. 13, the large cleaning mode operation wire 40 is in a state S2 lowered by the 1 st amount α 1(mm) from the position P1 to the position P0.
At the same time, the projection 40a of the operation wire 40 does not descend in accordance with the coupling portion 48a of the operation lever 48 for the large cleaning mode.
On the other hand, the operating wire 44 for the small wash mode from the state S1 shown in fig. 11 to the state S2 shown in fig. 7 moves by the 1 st amount α 1(mm) from the position P1 shown in fig. 11 to the position P0 shown in fig. 7 while being released from the guide groove 36g of the rotation winding portion 36b of the pulley 36.
Thus, as shown in fig. 13, the small wash mode operation wire 44 is in a state S2 lifted by only the 1 st amount α 1(mm) from the position P1 to the position P0.
At the same time, the projection 44a of the operation wire 44 is raised to the vicinity of the coupling portion 50a of the operation lever 50 for the small washing mode.
At this time, the water level in the water storage tank 8 in the state S2 shown in fig. 13 is lowered from the water level W L1 shown in fig. 12 to the water level W L2.
In addition, the water level in the large cleaning control cylinder 54 in the state S2 shown in fig. 13 also drops from the full water level shown in fig. 12 to the water level h 1. Accordingly, the float 56 is also lowered, and therefore the overflow pipe 66, the water discharge valve body 24, and the operation lever 48 for the large flush mode are also located at the position P2 lowered by the distance H2 (see fig. 13) from the position P1 together with the float 56.
In addition, the water level in the small washing control cylinder 58 in the state S2 shown in fig. 13 also decreases from the full water level t0 to the water level t 1.
However, in the state S2 shown in fig. 13, the upper end of the cam 62 is in a state of being received by abutting against the rib 68a of the hook member 68. Therefore, the water storage weight 60 and the cam 62 do not participate in the operation of the overflow pipe 66 and the discharge valve body 24, and the water storage weight 60 is in a state of floating at the water level in the small washing control cylinder 58.
Next, after the state S2 shown in fig. 13, when the water level in the water storage tank 8 further lowers, the buoyancy of the float 56 disappears, and therefore the overflow pipe 66, the water discharge valve body 24, and the operation lever 48 for the large flush mode further lower.
Finally, as shown in fig. 14, the drain valve body 24 comes into contact with the valve seat 52a and is in a state of closing the drain port 22, that is, a state S3 in which the large cleaning mode is ended.
In addition, as shown in fig. 14, in the state S3, the float 56 is in a floating state due to the water level h2 of the washing water in the large washing control cylinder 54.
As shown in fig. 14, in state S3, the water level t2 of the washing water in the small washing control cylinder 58 becomes the lowest level. However, the upper end of the cam 62 abuts against the rib 68a of the hook member 68 and maintains the received state, and therefore, the cam floats in the small washing control cylinder 58.
As shown in fig. 14, the water level in water storage tank 8 is set to minimum water level DW L1 in the large flush mode.
As a result, in the large flush mode, as shown in fig. 14, the amount of flush water in storage tank 8 that has fallen from full water level W L0 to minimum water level DW L1 is supplied from discharge port 22 to the water conduit (not shown) of toilet main unit 10, and toilet flushing in the large flush mode is performed.
Next, the operation when the valve opening operation in the small flush mode is performed using the water discharge valve operating device 1 according to the present embodiment will be described with reference to fig. 6 to 9 and fig. 15 to 19.
Fig. 15 is a sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for large flushing in a state where the small flushing mode is started.
Fig. 16 is a cross-sectional view similar to fig. 6 showing the electric operation unit of the water discharge valve operation device according to the embodiment of the present invention, and shows the pulley and the operation line for the small flush in a state where the small flush mode is started.
Fig. 17 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing an open state at the start of the small flush mode.
Fig. 18 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a state during valve closing in the small purge mode.
Fig. 19 is a schematic front cross-sectional view of the water discharge valve device operated by the water discharge valve operating device according to the embodiment of the present invention, showing a closed valve state when the small purge mode is completed.
First, as shown in fig. 6 to 9, from the standby state S0 in which the discharge valve body 24 of the discharge valve device 14 closes the discharge port 22, the electric operation of the electric operation unit 26 of the discharge valve operation device 1 of the present embodiment opens the discharge valve body 24 in the small flush mode.
At this time, for example, the user instructs the toilet bowl washing operation in the large washing mode by pressing a predetermined operation button (not shown) such as a remote controller (not shown), or the like, or the signal is transmitted to the control device (not shown) when the human detection sensor (not shown) detects the user.
Thereafter, the electric rotary shaft 26a of the electric operation unit 26 shown in fig. 6 and 7 is operated, and the pulley 36 is rotated about the rotation center axis a1 in the 2 nd direction R2 opposite to the 1 st direction R1 together with the electric rotary shaft 26a, and the valve opening operation in the small wash mode is started.
Next, as shown in fig. 15 and 16, the pulley 36 is rotated by the rotation angle θ 2 (e.g., θ 2 is 83.5(°)) from the standby position P0 in the 2 nd direction R2 around the rotation center axis a1, and is in the start state S4 of the small washing mode. In this state S4, the other end 36j of the rotation restricting guide groove 36h of the rotation winding portion 36b abuts on the rotation restricting projection 34a, and the rotation of the pulley 36 is restricted (see fig. 15).
At this time, as shown in fig. 16, the small washing mode operation wire 44 is wound around the guide groove 36g of the rotation winding portion 36b of the pulley 36 and moved by only the 2 nd amount α 2(mm) which is the same as the 1 st amount α 1(α 2 is α 1) in the large washing mode.
Thus, as shown in fig. 17, the small washing mode operation wire 44 is lifted up by the 2 nd amount α 2(mm) from the standby position P0 to the position P3.
At the same time, the projection 44a of the operation wire 44 is lifted up in a state of being fitted to the coupling portion 50a of the operation lever 50 for the small washing mode.
Therefore, as shown in fig. 17, the operation lever 50 for the small wash mode is lifted up by a predetermined distance H1(mm) (H1 is α 1) equal to the 2 nd amount α 2 (mm).
As shown in fig. 17, the hook member 68 connected to the operation lever 50 is lifted by lifting the operation lever 50 for the small flush mode, and the overflow pipe 66 is lifted by lifting the hook member 68, whereby the water discharge valve body 24 is also lifted by a predetermined distance H1(mm) from the valve closing position P0 to the uppermost position P3 (H1 — α 2).
Therefore, in the small flush mode, the discharge valve body 24 is smoothly opened by the same operation as in the large flush mode, and flush water in the reservoir tank 8 starts to be discharged from the discharge port 22 to the water conduit (not shown) of the toilet main unit 4.
On the other hand, as shown in fig. 15, the large cleaning mode wire 40 is moved by the 2 nd amount α 2(mm) while being released from the guide groove 36f of the rotating winding-up portion 36b by the rotation of the pulley 36 in the 2 nd direction R2.
Thus, as shown in fig. 17, the large cleaning mode operation wire 40 is lowered by the 2 nd amount α 2(mm) from the standby position P0 to the position P3.
At the same time, the projection 40a of the operation wire 40 does not descend in accordance with the coupling portion 48a of the operation lever 48 for the large cleaning mode.
Therefore, in the starting state S4 of the small washing mode, the operation lever 48 for the large washing mode is not lifted by the operation wire 40 for the large washing mode itself.
However, as shown in fig. 17, in the state S4, since the operation lever 48 for the large cleaning mode is coupled to the overflow pipe 66, the operation lever is in a state of being raised by a predetermined distance H1(mm) from the valve-closed position P0 to the uppermost position P3 together with the overflow pipe 66 and the water discharge valve body 24.
In the water discharge valve device 14 in the state S4 shown in fig. 17, similarly to the valve opening operation in the large flush mode, the rib 66b of the overflow pipe 66 comes into contact with the inner peripheral upper edge portion 60a of the water storage weight 60 from below along with the rise of the overflow pipe 66 in the valve opening operation in the small flush mode. Thereby, the water storage weight 60 also rises integrally with the overflow pipe 66.
Here, in the water discharge valve device 14 in the state S4 shown in fig. 17, the cam 62 of the water storage weight 60 in the small purge control cylinder 58 is rotated while being guided toward the overflow pipe 66 side because the upper end thereof abuts against the inclined surface of the guide portion 64a of the control cylinder cover 64.
However, in the small washing mode in the state S4 shown in fig. 17, the hook member 68 and the reinforcing rib 68a thereof are in a state of ascending together with the overflow pipe 60, unlike the large washing mode.
Therefore, the upper end of the cam 62 is not caught by the rib 68a of the hook member 68, and is in contact with the outer surface of the overflow pipe 66.
In the state during the valve opening from standby state S0 shown in fig. 8 to state S4 shown in fig. 17 in the small cleansing mode, the upper end of cam 62 abuts against the outer surface of overflow pipe 66, and therefore, even when the water level in water storage weight 60 is in the full water state, the weight of water storage weight 60 does not act on overflow pipe 66.
In the state S4 shown in fig. 17, the level of the washing water in the storage tank 8 is lowered from the full water level W L0 of the standby state S0 shown in fig. 8 to the water level W L1, as in the state S1 of the large washing mode.
Next, after state S4 shown in fig. 15 to 17, the DC motor (not shown) of the electric operation unit 26 is stopped for a predetermined time, and the electric rotary shaft 26a is stopped for a predetermined time. Thereby, the discharge valve body 24 is opened at the uppermost position P3 for a predetermined time.
After that, after the water discharge valve body 24 is opened for a predetermined time, the DC motor (not shown) of the electric operation unit 26 is operated again.
Accordingly, the electric rotary shaft 26a and the pulley 36 are rotated (reversed) in the 1 st direction R1 by the rotation angle θ 1 about the rotation center axis a1, and then stopped again, and the state S5 is the same as the standby state S0 shown in fig. 6 and 7.
That is, the small wash mode operation wire 44 from the state S4 shown in fig. 16 to the state S5 shown in fig. 7 moves by α 2(mm) no more than 2 from the position P3 shown in fig. 16 to the position P0 shown in fig. 7 while being released from the guide groove 36g of the rotation winding portion 36b of the pulley 36.
Thus, as shown in fig. 18, the small wash mode operation wire 44 is lowered by only the 2 nd amount α 2(mm) from the position P3 to the position P0.
At the same time, the projection 40a of the operation wire 44 does not descend in engagement with the coupling portion 50a of the operation lever 50 for the small washing mode.
On the other hand, the large washing mode operation wire 40 from the state S4 shown in fig. 15 to the state S5 shown in fig. 6 moves by the 2 nd amount α 2(mm) from the position P3 shown in fig. 15 to the position P0 shown in fig. 6 while being released from the guide groove 36f of the rotation winding portion 36b of the pulley 36.
Thus, as shown in fig. 18, the large cleaning mode operation wire 40 is in a state S5 lifted up by the 2 nd amount α 2(mm) from the position P3 to the position P0.
At this time, the projection 40a of the operation wire 40 is not engaged with the coupling portion 48a of the operation lever 48 for the large washing mode, but is spaced downward from the coupling portion 48 a.
In addition, the water level in the water storage tank 8 in the state S5 shown in fig. 18 is lowered from the water level W L1 shown in fig. 17 to the water level W L3.
At this time, the water level in the small washing control cylinder 58 in the state S5 shown in fig. 18 is lowered from the full water level t0 to the water level t 3.
In the state S5 shown in fig. 18, although the water storage weight 60 in the small washing control cylinder 58 is in a floating state, the overflow pipe 66 descends integrally with the water storage weight 60 because the cam 62 is maintained in contact with the overflow pipe 66.
Next, after state S5 shown in fig. 18, when the water level in the water storage tank 8 further drops, the overflow pipe 66 also drops. At this time, since the weight of water storage weight 60 does not act on overflow pipe 66, overflow pipe 66 and drain valve body 24 are lowered at a speed faster than in the large cleaning mode.
Finally, as shown in fig. 19, the water discharge valve body 24 comes into contact with the valve seat 52a and is in a state of closing the water discharge port 22, that is, a state S6 in which the small flush mode is ended.
In addition, as shown in fig. 19, in state S6, the water level t4 of the washing water in small washing control cylinder 58 becomes the lowest level, and water storage weight 60 is also located at the lowest position. At this time, the lower end of the cam 62 abuts against the projection 58b in the small cleaning control cylinder 58, and therefore, the cam is rotated in a direction away from the overflow pipe 66 (distal side), and is returned to the initial position of the standby state.
Further, as shown in FIG. 19, the water level in water storage tank 8 becomes minimum water level DW L2 in the small washing mode, and minimum water level DW L2 in the small washing mode becomes a higher water level than minimum water level DW L1 in the large washing mode (DW L2 > DW L1).
As a result, in the small flush mode, as shown in fig. 19, the flush water in storage tank 8 having dropped from full water level W L0 to minimum water level DW L2 is discharged from discharge port 22 to a water conduit (not shown) of toilet main unit 10, and toilet flushing in the small flush mode is performed with a flush water amount smaller than that in the large flush mode.
According to the drain valve operating device 1 according to the above-described embodiment of the present invention, when the large washing mode and the small washing mode, in which the washing water amounts are different from each other, are executed, the different washing modes can be easily switched using the rotation winding unit 36b of the common pulley 36 by simply performing the rotation operation of the same rotation operation amount θ 1 on the electric rotation shaft 26a of the electric operation unit 26 in the different directions R1 or R2 according to the desired washing mode.
Further, the rotary retracting unit 36b retracts either the large flush mode operation wire 40 or the small flush mode operation wire 44 by the same amount α 1 or α 2 according to each flush mode, so that the valve opening operation for the fixed amount H1 of the water discharge valve body 24 can be accurately performed regardless of the flush mode, and toilet flushing in different flush modes can be easily performed.
Further, according to the drain valve operating device 1 of the present embodiment, when the large washing mode and the small washing mode, in which the amounts of washing water are different from each other, are executed, if the electric rotating shaft 26a of the electric operating unit 26 is rotated in accordance with the desired washing mode, the rotation winding portion 36b of the pulley 36 can be rotated by the same amount of rotation in the different direction R1 or R2 in accordance with the desired washing mode with a rotation radius larger than the rotation radius of the electric rotating shaft 26 a.
Accordingly, the rotation winding part 36b of the pulley 36 can automatically wind only the same amount α 1 or α 2 of the large washing mode operation wire 40 or the small washing mode operation wire 44 in accordance with the washing mode, whereby the valve opening operation for the fixed amount H1 of the water discharge valve body 24 can be automatically performed regardless of the washing mode, and toilet bowl washing in different washing modes can be automatically performed easily.
Further, since the turning and winding part 36b of the pulley 36 can turn at a turning radius larger than that of the electric rotating shaft 26a, the turning and winding part 36b of the pulley 36 can lift up either the large washing mode operation wire 40 or the small washing mode operation wire 44 by a relatively large lift-up amount with respect to the turning angle θ 1 of the electric rotating shaft 26 a.
Therefore, the valve opening operation of the drain valve body 24 can be performed efficiently.
In the water discharge valve operating device 1 according to the present embodiment, first, when the electric rotary shaft 26 of the electric operation unit 26 is rotated in the 1 st direction R1 from the standby state S0 before the electric operation of the electric operation unit 26 is started, the rotary winding portion 36b of the pulley 36 is rotated in the 1 st direction R1 from the standby state S0, and the mounting holes 36d and 36e are moved only by the 1 st amount α 1 from the standby position P0 to the 1 st direction R1.
Thus, the large washing mode wire 40 is further wound up by the 1 st amount α 1 in the 1 st direction R1 from the standby position P0 by the rotation winding-up unit 36b, and the small washing mode wire 44 is released by the 1 st amount α 1 in the 1 st direction R1 from the standby position P0 by the rotation winding-up unit 36 b.
On the other hand, when the electric rotary shaft 26a of the electric operation unit 26 is rotated in the 2 nd direction R2 opposite to the 1 st direction R1, the rotary winding-up portion 36b is rotated from the standby state S0 in the 2 nd direction R2, and the mounting holes 36d and 36e are moved from the standby position P0 in the 2 nd direction R2 by the 2 nd amount α 2 which is the same as the 1 st amount α 1.
Thus, as for the large washing mode operation wire 40, only the 2 nd amount α 2 is released from the standby position P0 in the 2 nd direction R2 by the rotation winding-up unit 36b, and as for the small washing mode operation wire 44, only the 2 nd amount α 2 is further wound up from the standby position P0 in the 2 nd direction R2 by the rotation winding-up unit 36 b.
Therefore, the rotary retracting unit 36b can smoothly and automatically retract either the large cleaning mode operation wire 40 or the small cleaning mode operation wire 44 by the same amount α 1 or α 2 in accordance with the cleaning mode, and can reliably and automatically open the valve by the constant retracting amount H1 of the water discharge valve body 24 regardless of the cleaning mode.
The mounting holes 36d and 36e are arranged substantially in parallel in the direction of the rotation center axis a1 of the rotating winding-up portion 36 b. Further, as shown in fig. 6 and 7, the large cleaning mode wire 40 and the small cleaning mode wire 44 are arranged symmetrically with respect to the rotation center axis a1 of the rotating winding-up unit 36b on one side and the other side in a plan view, so that the large cleaning mode wire 40 and the small cleaning mode wire 44 do not interfere with each other and can be moved reliably and smoothly even when the rotating winding-up unit 36b rotates in accordance with the cleaning mode.
Further, according to the water discharge valve operating device 1 of the present embodiment, when the rotation winding portion 36b of the pulley 36 is rotated from the standby state S0 to the 1 st direction R1 by the rotation operation of the electric operation unit 26 to the 1 st direction R1 of the electric rotation shaft 26a, the large cleaning mode operating wire 40 is wound by the rotation winding portion 36b by the 1 st amount α 1.
Thus, in a state where the projection 40a at the one end of the large cleaning mode operation wire 40 is engaged with the coupling portion 48a of the large cleaning mode operation lever 48, the operation wire 40, the large cleaning mode operation lever 48, the overflow pipe 66, and the drain valve body 24 are raised by the 1 st amount α 1.
At the same time, the small washing mode operation wire 44 is released by the 1 st amount α 1 by the rotating winding part 36 b.
Thus, in a state where the engagement between the projection 44a at the one end of the small wash mode operation wire 44 and the coupling portion 50a of the operation lever 50 for the small wash mode is released, the operation wire 44 is lowered by the 1 st amount α 1.
Thus, the operation lever 50 for the small cleaning mode is not lifted up, and the operation lever 48 for the large cleaning mode is lifted up by the operation wire 40, so that the valve opening operation for the large cleaning mode of the water discharge valve body 24 can be accurately performed.
On the other hand, when the rotary retracting part 36b is rotated from the standby state S0 to the 2 nd direction R2 by the rotating operation of the electric operation unit 26 to the 2 nd direction R2 of the electric rotary shaft 26a, the operation lever 50 for the small washing mode is retracted by the rotary retracting part 36b by the 2 nd amount α 2 which is the same as the 1 st amount α 1, and thereby the operation wire 44, the operation lever 50 for the small washing mode, the overflow pipe 66, and the drain valve body 24 are raised in a state where the projection 44a at one end of the operation wire 44 is engaged with the coupling part 50a of the operation lever 50 for the small washing mode.
At the same time, the wire 40 for the large washing mode is released by the rotation winding part 36b by the 2 nd amount α 2, and the wire 40 is lowered by the 2 nd amount α 2 in a state where the engagement between the protrusion 40a at the one end of the wire 40 and the coupling part 48a of the lever 48 for the large washing mode is released.
Thus, the operation lever 50 for the small flush mode is lifted by the operation wire 44, and the valve opening operation for the small flush mode for the water discharge valve body 24 can be accurately performed.
Further, according to the water discharge valve operating device 1 of the present embodiment, the rotation regulating guide groove 36h of the rotation winding portion 36b of the pulley 36 and the rotation regulating projection 34a of the upper case 34 function as a rotation angle regulating means for regulating the rotation angle θ 1 of the rotation winding portion 36b of the pulley 36.
Thus, the range of the rotation angle θ 1 of the rotating winding-up unit 36b that is rotationally operated in the 1 st direction R1 or the 2 nd direction R2 in accordance with the cleaning mode can be limited to a range of a predetermined angle (e.g., 83.5(°)) as well.
Accordingly, the lift amount H1 of the water discharge valve body 24 during the valve opening operation can be accurately controlled.
Further, according to the water discharge valve operating device 1 of the present embodiment, the valve opening operation of the fixed lift amount H1 of the water discharge valve body 24 can be accurately performed regardless of the flush mode, and the flush water tank device 4 capable of easily performing toilet flushing in different flush modes can be provided.
Further, according to the water discharge valve operating device 1 of the present embodiment, the valve opening operation of the fixed lift amount H1 of the water discharge valve body 24 can be accurately performed regardless of the flush mode, and the toilet system T capable of easily performing toilet flushing in different flush modes can be provided.
The drain valve operation device 1 according to the present embodiment is applied to the flush water tank device 4 hidden inside the wall W1, and the electric operation of the electric operation unit 26 is used to open the drain valve device 14.
However, the drain valve operating device 1 according to the present embodiment may be applied to a flush water tank device that is not hidden in a wall or the like.
The rotation operation of the pulley 36 is not limited to the electric operation by the electric operation unit 26, and may be performed manually by rotating a handle or the like coupled to the pulley 36.
In the above-described discharge valve operating device 1 according to the present embodiment, a description has been given of a mode in which toilet bowl flushing in 2 types of flush modes, i.e., large and small flush modes, can be performed using 2 operation lines 40 and 44.
However, by changing only the structure of the discharge valve device 14 without changing the discharge valve operating devices 1 and 2 operating lines 40 and 44 of the present embodiment, it is possible to perform toilet bowl washing in 3 kinds of wash modes or 4 or more wash modes, for example, in large, medium, and small sizes.
In the above-described drain valve operating device 1 according to the present embodiment, as the mechanism for regulating the rotation angle of the pulley 36, the rotation regulating projection 34a of the upper case 34 is set to the projecting side and the rotation regulating guide groove 36h of the rotation winding part 36b is set to the recessed side.
Further, both the pulley and the housing that rotatably holds the pulley may be provided with a projection or the like that can abut against each other when the pulley is rotated by a predetermined angle, thereby restricting the rotation angle.

Claims (7)

1. A drain valve operating device for opening a drain valve of a flush water tank device for supplying flush water to a toilet,
comprising: a1 st coupling member and a 2 nd coupling member, each having one end coupled to the drain valve;
a rotary winding unit to which the other end of each of the 1 st and 2 nd coupling members is coupled;
an operation unit for rotating the rotary winding unit; and
a protective pipe fixed to the other end sides of the 1 st and 2 nd coupling members to cover the 1 st and 2 nd coupling members,
when the operation unit is rotationally operated in the 1 st direction, the rotational retraction unit retracts the 1 st coupling member by the 1 st amount in the 1 st direction and lifts up the discharge valve by the 1 st amount, thereby enabling the toilet bowl washing in the 1 st washing mode with the 1 st washing water amount,
when the toilet bowl is rotated in the 2 nd direction opposite to the 1 st direction, the rotation winding unit winds the 2 nd coupling member in the 2 nd direction by the 2 nd amount which is the same as the 1 st amount, and lifts the water discharge valve by the 2 nd amount, thereby performing toilet bowl washing in the 2 nd washing mode by the 2 nd washing water amount which is different from the 1 st washing water amount,
before the 1 st and 2 nd cleaning modes are executed, the 1 st and 2 nd coupling members are provided at positions where the 1 st and 2 nd coupling members are wound in advance along the outer periphery of the rotating winding-up portion by a predetermined length.
2. The drain valve operating device according to claim 1,
the operation unit is an electric operation unit that is electrically operable to operate the discharge valve, and includes an electric rotating shaft that is rotatably driven by external power, the electric rotating shaft being connected to the rotating and winding unit,
the rotating and winding unit is rotatable by the rotational driving of the electric rotating shaft with a radius of rotation larger than that of the electric rotating shaft.
3. The drain valve operating device according to claim 2,
a1 st mounting portion and a 2 nd mounting portion to which the other end of each of the 1 st coupling member and the 2 nd coupling member is mountable are provided on an outer periphery of the rotating take-up portion, respectively, and the mounting portions are arranged substantially in parallel in a direction of a rotation central axis of the rotating take-up portion,
the 1 st coupling member and the 2 nd coupling member are arranged symmetrically with respect to a rotation center of the rotating winding-up portion in a plan view,
in a state before starting the electric operation of the electric operation unit, a standby position of the 1 st attaching part of the rotating and winding part and the other end of the 1 st coupling member is set to a position where the 1 st coupling member is wound in advance by a predetermined length along an outer periphery of the rotating and winding part in the 1 st direction,
in a state before the electric operation of the electric operation unit is started, the standby positions of the 2 nd attaching part of the rotating and winding part and the other end of the 2 nd coupling member are set to positions at which the 2 nd coupling member is wound in advance along the outer periphery of the rotating and winding part by the predetermined length in the 2 nd direction.
4. The drain valve operating device according to claim 3,
further comprising: a1 st rod part indirectly connecting the drain valve and one end of the 1 st connecting member; and a 2 nd rod part indirectly connecting the drain valve and one end of the 2 nd connecting member,
the 1 st rod part includes a1 st coupling part that is configured to be able to engage/disengage and couple the other end of the 1 st coupling member while slidably holding the 1 st coupling member,
the 2 nd rod portion includes a 2 nd coupling portion that is configured to be able to engage/disengage and couple the other end of the 2 nd coupling member while slidably holding the 2 nd coupling member.
5. The drain valve operating device according to any one of claims 1 to 4,
further comprises a holding part for rotatably holding the rotary furling part,
the rotary winding unit and the holding unit are provided with a rotation angle restricting mechanism for restricting a rotation angle of the rotary winding unit.
6. A flush water tank device comprising the drain valve operation device according to any one of claims 1 to 5.
7. A toilet system comprising the flush water tank device according to claim 6 and a flush toilet connected to the flush water tank device.
CN201810057926.2A 2017-01-30 2018-01-22 Drain valve operating device, cleaning water tank device and toilet flushing system Active CN108374462B (en)

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JP6578627B2 (en) * 2018-02-15 2019-09-25 Toto株式会社 Drain valve operation device, washing water tank device, and flush toilet
CN114673223A (en) * 2022-03-18 2022-06-28 绿城装饰工程集团有限公司 Installation method of wall-mounted closestool of assembled toilet

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US10519640B2 (en) 2019-12-31
JP6886615B2 (en) 2021-06-16

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